Oozes
Oozes are slow-moving, amorphous creatures that consume anything organic, or once organic, that they encounter. Lacking intelligence and purpose beyond consumption, they drift through confined spaces, dissolving and absorbing whatever they touch.
They are most often found in dungeons and ruins, where they serve an unintentional but effective role: breaking down remains and clearing what others leave behind.
Though simple in nature, their resilience and methodical movement make them a constant hazard in enclosed environments.